scholarly journals Effects of rates of nitrogen on yield and yield components of winter triticale

2016 ◽  
Vol 61 (2) ◽  
pp. 127-135 ◽  
Author(s):  
Dragana Lalevic ◽  
Milan Biberdzic

Due to the high genetic potential for yield and favourable nutritional value, triticale is a promising plant species. For achieving high and stable yields, it is necessary to have favorable agroclimatic conditions of the locality, variety and advanced agricultural techniques, with special emphasis on fertilizing. This study examines the effect of increasing rates of nitrogen on yield and yield components of five cultivars of winter triticale: Odisej, Kg-20, Triumph, Rtanj and Tango. The three-year trial (2009-2012), which was set up in a randomized block system with three replications, included control and three different doses of nitrogen fertilization (0, 60, 90 and 120 kg ha-1). In all variants of fertilization, 80 kg ha-1 P2O5 and K2O were added beside nitrogen. The obtained results showed that the use of nitrogen had a positive effect on yield and yield components in all variants and in all cultivars. The variety Tango had the highest average grain yield, while the variety Kg-20 had the lowest. Also, Tango had the highest value of the 1000 grain mass and the number of grains per spike, while Triumph had the highest value of hectoliter weight. The application of fertilizers led to a very large and significant increase of yield compared with the control. Accordingly, all studied cultivars had the highest yield with the highest quantities of nitrogen (120 kg ha-1). Considering that triticale is intended mainly for feeding livestock, the results of these studies would be valuable in terms of its growing as a forage crop as well as in terms of its breeding for grain quality and productivity.

Author(s):  
Nasratullah Habibi ◽  
Friba Sikandari

An experiment was conducted to evaluate effect of urea fertilizer on yield and yield components of Zea mays L. Using Randomized Complete Block Design (RCBD) split plots in three replications in agricultural research farm of Balkh University by 2019. Doses of urea used in this experiment were 0, 80, 160 and 240 kg ha-1 , respectively. It has been found that amount of nitrogen fertilizer (urea) had significant effect on yield of maize at p<0.05. The higher level of nitrogen caused the higher grain yield, number of kernels per ear, the number of grains per ear row, ear diameter, cob length, grain per plant and plant height. As a result 7.76 ton ha-1 was recorded as high yield while 240 kg ha-1 urea was used, and 5.12 ton ha-1 was recorded as low yield in treatment one with 0 kg ha-1 of nitrogen fertilizer. Finally, as a result using 240 kg ha-1 nitrogen fertilizer is recommended.


2019 ◽  
Author(s):  
Miao Zhang ◽  
Zhengping Zhou ◽  
Yuyu Chen ◽  
Yongrun Cao ◽  
Chenwei Deng ◽  
...  

Abstract Background Rice is one of the most important food crops in the world. To determine the genetic basis of yield components in super rice Nei2You No.6, 387 recombinant inbred sister lines (RISLs) were obtained for mapping quantitative trait loci (QTL) responsible for yield-associated traits, such as 1000-grain weight (TGW), grain number per plant (GNP), number of panicles per plant (NP), and grain yield per plant (GYP). Results Using whole genome re-sequencing, a high-density linkage map consisting of 3203 bin markers was constructed with total genetic coverage of 1951.1 cM and an average density of 0.61 cM. As a result of the multi-environment test, 43 yield-related QTL were mapped to all 12 chromosomes, among which 28 inherited from Nei2B showed a positive effect on yield traits. Nine QTL, qTGW-1a, qTGW-5, qTGW-7, qTGW-10b, qTGW-10c, qTGW-12, qNP-7, qGNP-6c, and qGYP-6b, showed stable effects across multiple environments. Five of the nine QTL were co-located with previously reported QTL, and four novel loci, qTGW-7, qTGW-12, qGNP-6c, and qNP-7, were identified in the present study. Subsequently, qNP-7, qTGW-12, and qTGW-7 were validated using corresponding paired lines which differed only in the target region. Conclusions the RISL population is an effective tool for mapping and validating QTL of complex traits, for instance, yield-associated traits, and newly detected QTL provide new genetic resources for research of yield components and molecular breeding in rice.


2012 ◽  
Vol 31 (5) ◽  
pp. 903-909 ◽  
Author(s):  
E. Dogan ◽  
A. Kahraman ◽  
B. Bucak ◽  
H. Kirnak ◽  
M. E. Guldur

2007 ◽  
Vol 55 (2) ◽  
pp. 217-225 ◽  
Author(s):  
Z. Hegyi ◽  
I. Pók ◽  
C. Szőke ◽  
J. Pintér

An experiment was set up at five locations in Hungary in 2005, in a randomised block design with four replications. At each location 24 hybrids were tested from each of four maturity groups (FAO 200, FAO 300, FAO 400, FAO 500). Evaluations were made of the yield average (t/ha) and the yield components of the sample ears: ear length, number of kernel rows, thousand-kernel mass and kernel/cob ratio. This was followed by chemical analysis to determine the protein, oil and starch contents of the kernels. The chemical quality parameters were recorded for almost 100 hybrids, and the correlations of the protein, oil and starch contents with yield and yield components were analysed. It was found that in all the maturity groups the yield was closely correlated with the thousand-kernel mass (0.72). In each maturity group the highest yield averages were associated with the greatest average starch contents, except for the FAO 500 group in the Szarvas location, where the development of secondary ears contributed to the achievement of the highest yield average. A very close correlation was found between the starch content and the thousand kernel mass (0.91). The variety caused greater differences in protein content than the location. This was also true for the oil content in the FAO 200 and FAO 400 groups, but only in the FAO 400 group in the case of starch content. More starch was incorporated at wetter locations, where the protein content of the samples was lower.


1994 ◽  
Vol 74 (1) ◽  
pp. 7-13 ◽  
Author(s):  
V. S. Baron ◽  
A. C. Dick ◽  
E. A. de St. Remy

Spring-planted mixtures of spring and winter cereals in a silage/fall pasture system have been shown to extend the grazing season in the Parkland of the Canadian prairies. Experiments were conducted at Lacombe, Alberta to determine the effects of planting date on yield and yield components of spring-seeded spring oat (Avena sativa L.), winter wheat (Triticum aestivum L.), winter triticale (X Triticosecale Wittmack) and winter rye (Secale cereale L.). The cereals were grown as monocrops or as binary mixtures of the oat and winter cereals. Treatments were planted in early May and mid-June and harvested twice for forage. The initial harvest for early and late planting dates occurred when oat reached the early-milk and heading stages, respectively. Regrowth was harvested in mid- to late September. The planting date x treatment interaction did not affect (P ≤ 0.05) annual yield (initial + regrowth) even though oat was harvested at different developmental stages. Averaged over treatments, late planting reduced annual yield by 42%. The annual yields ranked: mixtures = oat monocrop > winter cereals. Late planting date reduced the initial yield of all treatments, but the winter monocrops were reduced less than oat. Oat dominated the initial yield of all mixtures. Although oat tiller density was lower in the mixtures than monocropped oat at the initial cut, oat constituted a greater proportion of the mixture than would have been expected from the seeding ratio (1:1). A larger tiller weight in the oat mixture vs. the monocrop may have compensated for low tiller density in the mixture. Mixture regrowth yields tended to be greater in late-planted treatments and were dominated by the winter cereals. Although the winter cereal component of the mixture had more tillers at the regrowth cut, they still had lower yields when compared with their respective monocrops. Thus, late planting reduced annual yields of mixtures and monocrops, but did not limit regrowth of winter cereals in mixtures given equal regrowth periods. Key words: Oat, winter rye, winter wheat, winter triticale, forage yield, tillering


Author(s):  
Özge Uçar

Background: This study was conducted in 2016-2017 to determine the effects of Mesorhizobium ciceri inoculation and different doses of vermicompost applications on the yield components and yield of chickpea under semi-arid Mediterranean highland condition of Turkey. Methods: Mesorhizobium ciceri inoculant were applied to seeds (at 108 cfu bacteria per seed dose) as microbial fertilizer in the experiments. Vermicompost doses were 0, 1000, 2000 and 3000 kg ha-1. The trials were set up with three replications according to the randomized complete blocks design. Conclusion: Plant height, first pod height, pod number per plant, number of seeds per plant, 100 grain weight and grain yield were determined as 56.1-61.9 cm, 29.4-34.9 cm, 31.4-46.3 pods plant-1, 32.9-44.0 seed plant-1, 30.4-37.4 g and 1463-2072 kg ha-1, respectively. Co-application of 1000 kg ha-1 vermicompost with Mesorhizobium ciceri inoculation produced the highest values for all examined parameters for both years. Further applications of vermicompost reduced yield and related components. Control parcels and excess vermicompost applications (2000 and 3000 kg ha-1) produced lowest values. Mesorhizobium ciceri inoculation produced medium values between Co-application of 1000 kg ha-1 vermicompost with Mesorhizobium ciceri and control and excess vermicompost applied conditions. In conclusion, use of Mesorhizobium ciceri + 1000 kg ha-1 vermicompost was recommended in chickpea cultivation for maximum yield in the ecological conditions of Siirt province of Turkey or in similar ecologies.


2021 ◽  
Vol 10 (1) ◽  
pp. e55010111903
Author(s):  
Eduardo Rodrigues Mota ◽  
Oscar José Smiderle ◽  
Luiz Fernandes Silva Dionisio ◽  
Aline das Graças Souza ◽  
Raiovane Araújo Montenegro ◽  
...  

The objective of this work was to evaluate seedlings quality of the tree species Agonandra brasiliensis under different doses of the controlled release fertilizer (CRF) Osmocote® and recipient volumes. The experiment was set up in a factorial design for two recipient volumes (1.8 L and 2.2 L) and five CRF doses (0.0; 0.5; 1.0; 2.0; and 3.0 g L-1 of substrate). Four repetitions of one plant each were used. After transplanting seedlings, stem height, stem collar diameter, and the robustness index (RI) were measured in a monthly basis during eight months. The highest seedlings growth was observed with the CRF Osmocote® dose of 2.0 g L-1 and recipients of 2.2 L. The treatment with CRF dose of 2.0 g L-1 in 240 days presented higher initial accumulated growth in height of A. brasiliensis seedlings (mean = 31.38 cm). Seedlings under the dose of 2.0 g L-1 presented 85.90% increase of stem height in relation to the control (substrate without CRF). CRF Osmocote® had positive effect on growth of A. brasiliensis seedlings. Growth was influenced by the different CRF doses and recipient volumes, both for the variables stem height and stem collar diameter and for the RI. The dose 2.0 g L-1 allowed greater accumulated growth in height and diameter in 240 days.


2017 ◽  
Vol 5 (3) ◽  
pp. 237-242 ◽  
Author(s):  
Hye Jeong Kim ◽  
Hyun Suk Cho ◽  
Jun Hun Pak ◽  
Kook Jin Kim ◽  
Dong Hee Lee ◽  
...  

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